Effects of a 4-week Low-intensity Training With Blood Flow Restriction in People With Rotator Cuff-related Shoulder Pain

N/ANot Yet RecruitingNCT07324993

University of Valencia34 enrolled

Overview

This study aims to analyze the effects of 4 weeks of low-intensity exercise with and without blood flow restriction (BFR) on pain, fear of movement, catastrophizing about pain, strength, and disability in a population with rotator cuff-related shoulder pain. There are two modalities corresponding to the same exercises under different blood flow restriction conditions: 1) 3 low-intensity exercises (30% 1RM) with BFR (50% AOP); 2) 3 low-intensity exercises (30% 1RM) without BFR. Participants will be randomly assigned to one of two groups and will undergo a 4-week intervention. The variables of interest will be assessed in each group for subsequent analysis and comparison.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Rotator Cuff Related Shoulder Pain

Interventions

Resistance exercise without BFRPROCEDURE

Three exercises: external rotation at 0°, internal rotation at 0° and elevation in the scapular plane. 4 sets (30, 15, 15, reps to fatigue) with a intensity of 30% RM and a without flow restriction application (cuff applied without pressure). 30" rest between sets, 2' rest between exercises.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Age between 18 and 65. * Shoulder symptoms lasting at least 3 months. * Pain in the proximal anterolateral aspect of the shoulder, aggravated by abduction. * At least two of the following tests positive: Jobe test, resisted external rotation test, Hawkins-Kennedy test, Neer test, painful arc between 60 and 120 degrees of shoulder abduction. Exclusion Criteria: * Pain of an intensity that prevents performance of the proposed exercises. * Active arm elevation less than 90 degrees. * Clinical signs of a complete tear (positive delayed external and internal rotation sign and positive drop arm test). * Suspected frozen shoulder (50% reduction or more than 30° loss of passive shoulder external rotation). * Primary diagnosis of shoulder instability or acromioclavicular pathology. * Shoulder pain due to primary involvement in the cervical or thoracic region * Corticosteroid injection within the last 6 weeks. * Presence of diseases such as inflammatory arthritis, neurological diseases, fibromyalgia, malignant tumors, or polymyalgia rheumatica. * Presence of comorbidities that increase cardiovascular risk, such as hypertension, diabetes, or heart failure. * Presence of more than one thromboembolism risk factor (obesity, history of thrombosis, prolonged immobilization, recent surgery, use of contraceptives, etc.). * Presence of active skin lesions in the area where the sleeve will be placed, recent scars or burns, or chronic dermatological diseases that compromise skin integrity, * Participation in upper limb exercise programs in the last month.

Outcomes

Primary Outcomes

Pain intensity during movement (Visual Analogue Scale, 0-10)

Pain intensity perceived on a Visual Analogue Scale during movement (flexion and abduction movement without load), being 0 no pain and 10 the worst pain imaginable.